Operating instructions

5. SPEL AOI Reference
EPSON RC+ 7.0 Option AOI (Add-On Instructions) Rev.1 45
SPEL_MemIn
Description
Reads a byte of memory IO.
Common Inputs and Outputs
Refer to section 2.4 SPEL AOI Common Inputs and Outputs.
Inputs
PortNum INT port number to be read. Port number refers to byte number.
Outputs
Value INT value of the port.
Operation
Refer to section 2.5 SPEL AOI General Operation.
Refer to MemIn Function in the SPEL+ Language Reference manual.
Example
To read port number 0 of memory I/O, run the AOI as shown below.